code: def is_internal_column(name):
      """Return true if the column name is reversed by DGL."""
      return name in _INTERNAL_COLUMNS
  
file_path: dgl/python/dgl/base.py
imports: from __future__ import absolute_import
  import warnings
  from ._ffi.base import DGLError
  from ._ffi.function import _init_internal_api
label_desc: Use image node_id 1 for calling a global function with example usage: is_internal_column(name) and returns: unknown